package Sequence;

public class Test0860 {
}

class Solution0860_1 {
    public boolean lemonadeChange(int[] bills) {
        int five = 0;
        int ten = 0;

        for (int bill : bills) {
            if (bill == 5) {
                five++;
            } else if (bill == 10) {
                if (five == 0) return false;
                five--;
                ten++;
            }else {
                if (ten > 0 && five > 0){
                    ten--;
                    five--;
                }else if (five >= 3){
                    five-= 3;
                }else {
                    return false;
                }
            }
        }

        return true;
    }
}